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Answer: 2. A-IV, B-III, C-II, D-I

Key idea: Match each hormone with its source.

  • CCK: secreted by the gastrointestinal tract and acts on the pancreas and gall bladder (IV).
  • GIP: secreted by the gastric (gastrointestinal) mucosa (III).
  • ANF (atrial natriuretic factor): secreted by the atria of the heart (II).
  • ADH: acts on the kidney (I).

A-IV, B-III, C-II, D-I is option 2.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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